Full time students, international or otherwise, do not have to pay council tax:
So sayeth UKCOSA
http://www.ukcosa.org.uk [nofollow] International students - for questions on the rules and the like, UKCOSA is definitely your friend. They're very nice and helpful on the phone too if your question isn't answered in one of their FAQs or Guidance Notes
basically I think it has to do with the fact that the student exemption is not a benefit it is an exemption from a bill, not a benefit that pays the bill on the student's behalf. And in a household with students and other adults living together students are among the adults "disregarded" when counting heads for how many adults occupy the dwelling. Also not a benefit, as it's a pre-bill-figuring thing.
In any case, UKCOSA is quite clear on the fact that international students on a student visa for a course of study lasting at least one UK academic year don't pay council tax any more than home students do. They're also clear on the fact that students with "no recourse to public funds" are not eligible for council tax
benefit . (Making it all the more clear that the student exemption is not a benefit)
From the UKCOSA guidance note "International students and Council Tax":
http://www.ukcosa.org.uk/images/tax.pdf [nofollow] "DO I HAVE TO PAY THE COUNCIL TAX?
If you live in an 'exempt dwelling' you will not need to pay the Council Tax. There will be no bill for the dwelling.
Exempt dwellings include:
* Accomodation provided by the university or college ....
*Other dwellings (e.g. a privately rented flat) occupied only by students (see the note below about the dependents of students) "
"I LIVE WITH NON_STUDENTS: DO I HAVE TO PAY THE TAX?
Students living with only their spouse or family
If the only non-student adult in your dwelling is your spouse (husband or wife) and/or adult dependant, the dwelling may still be exempt.
It will be exempt if the spouse or dependent is not a British citizen and has been addmitted to the UK .... with a 'no recourse to public funds' condiditon or a prohibiton on employment stamped in their passport. "
"THERE IS A BILL FOR MY DWELLING: HOW IS IT CALCULATED?
...How the local authority counts the number of people living in the property
The local authority will count the number of adults who are living in the dwelling. However, when they are counting, they will 'disregard' (not count) certain residfent adults, including: students; spouses and dependants of students with either a 'no recourse to public funds' condiditon or employment prohibition in their passport; and student nurses "
(It then goes on to explain the business of:
more than one adult not in a disregarded category = full bill
only one adult not in a disregarded category == single person discount of 25%
all adults in disregarded categories but dwelling not exempt (for example a student + someone in some other disregarded category) = bill discounted 50% )